How does Elizabeth change throughout The Crucible?

In Act II of , Elizabeth still appears to be angry with John over
his affair with Abigail seven months earlier. John reproaches her with coldness, saying that she
is constantly judging and condemning him, and that her "justice would freeze beer." We
should be careful of agreeing with him too completely. It seems that the Proctors have had a
difficult and uncommunicative relationship since John's affair and the actress playing Elizabeth
will have to decide whether she is a harsh, unforgiving woman (albeit with a legitimate
grievance) or someone who finds it hard to talk to her...